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Effects of GnRH, PGF2α and oxytocin treatments on conception rate at the time of artificial insemination in lactating dairy cows
cow spontaneous oestrus GnRH PGF2伪 oxytocin pregnancy
2015/6/9
In several studies, hormones such as gonadotropin-releasing hormone (GnRH), prostaglandins and oxytocin were used to increase pregnancy rate by inducing ovulation and improving the sperm transport in ...
Pig Spermatozoa Defect in Acrosome Formation Caused Poor Motion Parameters and Fertilization Failure through Artificial Insemination and In vitro Fertilization
Boar Sperm Motion Parameters In vitro Fertilization Acrosome Defect
2016/5/17
The selection of morphologically normal spermatozoa is critical to obtain high breeding performances in boar breeding farms and artificial insemination (AI) centers. Parameters for the selection of se...
Effects of Repeated Artificial Insemination on the Structure and Function of Oviducal Sperm Storage Tubules in Hens
artificial insemination chicken fertility decline oviduct sperm storage tubules
2009/7/31
The goal of this study was to determine the mechanism by which the fertility was declined by repeated artificial insemination (AI) in laying hens. The structures of sperm storage tubules (SST) and lym...
Cryopreservation of Spermatozoa and Artificial Insemination：Past, Present, and Future
cryopreservation semen quality bull semen human semen semen donors
2009/2/19
This review article is intended to provide an in-depth analysis of the principles and programs established, as well as problems overcome, that have led to a successful artificial insemination (AI) p...
Exposure of thawed frozen bull sperm to a synthetic peptide before artificial insemination increases fertility
Enhancement of fertility bovine sperm prosaposin
2009/2/18
We evaluated the effect on fertility of in vitro exposure of thawed frozen bull sperm to synthetic FertPlus peptide prior to artificial insemination (AI). The peptide represented a 60-amino acid s...
Use of Bovine Somatotropin in Lactating Dairy Cows Receiving Timed Artificial Insemination
timed artificial insemination bovine somatotropin lactating cows
2008/6/27
Objectives of the research were to examine the effect of bovine somatotropin (bST) on pregnancy rates to a timed artificial insemination protocol and to test a re-synchronization system with two conse...
A New Device for Intrauterine Artificial Insemination in the Dog
Dog Frozen Semen Artificial Insemination Intrauterine Inseminator
2016/4/12
The intrauterine inseminator (IUI) was developed to provide the method of depositing dog semen into the uterine body instead of the vagina. The IUI consists of a vaginal endoscope, a balloon sheath, a...
Production of Crossbred Lambs through Artificial Insemination of Non-prolific Medium Size Malpura and Avikalin Ewes Using Fresh Diluted Semen of Prolific Micro Size Garole Rams
Garole Sheep Artificial Insemination Conception Lambing Semi-arid
2016/4/8
Six adult Garole rams maintained under a semi-intensive system were used as semen donors for this study. Semen was collectied daily during the monsoon season with the help of an artificial vagina and ...
Genotype Profiles for the Quantitative Trait Related to Milk Composition in Bulls Used for Artificial Insemination in India
κ-Casein β-Lactoglobulin Quantitative Trait Artificial Insemination Genotyping
2016/4/8
A population of exotic Holstein Friesian, Jersey, their crossbreds and the indigenous Murrah breed of buffalo bulls (n=486), used in artificial insemination breeding program were screened for the alle...